yearling definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- an animal one year old or in its second year
- Horse Racing a horse one year old: all thoroughbreds' birthdays are arbitrarily set at January 1, at which time a foal born on any date of the preceding year is reckoned one year old
being a year old
yearling definition by American Heritage Dictionary
- An animal that is one year old or has not completed its second year.
- A thoroughbred racehorse one year old dating from January 1 of the year in which it was foaled.
Being one year old.